Time travel: Light speed results cast fresh doubts

Time travel: Light speed results cast fresh doubtsTime travel: Light speed results cast fresh doubts External link

Physicists have confirmed the ultimate speed limit for the packets of light called photons - making time travel even less likely than thought. The speed of light in vacuum is the Universe's ultimate speed limit, but experiments in recent years suggested that single photons might beat it.

Tagslightphysicsspeedtime travel
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